It is interesting to note the apparent derivation of kivas from the old domiciliary pit houses which had, at least in a rudimentary form, all of the features of the later religious structures and which also lay in the same position in relation to the surface masonry structures. It is believed that originally each house had its own shrine. When special structures came to be built exclusively for the performance of religious rites, the people clung to the old form of building, although their dwellings were developing in a different direction. There is an innate conservatism and traditionalism in religion which is well represented in architecture. In our own cities, where we erect medieval cathedrals and sky scrapers, we can see a lag of from four to seven centuries between religious and secular architecture.

In some parts of the Southwest, kivas were not the only places available for the performance of religious rites. At Allantown[112] was found a great circular area, paved with adobe and enclosed on three sides by upright stone slabs, which is believed to have been a dance court. On the north side is a platform or dais. Probably in that long ago time there were many days and nights when moving feet beat out the intricate rhythms of the dance against the hard packed adobe, as the gods were importuned to bring life-giving rain for the crops.

Fig. 21—Interior view of a [kiva] showing distinctive features. Note the ventilator, [deflector], fire-pit, [sipapu], bench, and pilasters.

In addition to the houses, kivas, and dance courts, there were also brush shelters with firepits, ovens and storage places. These probably provided outdoor cooking facilities during the summer.

In the field of pottery, important changes were taking place, and specialization was increasing all through the Anasazi area. Developmental-Pueblo pottery had a finer paste and was better made than that of Modified-Basketmaker times. Some tempering was done with pulverized potsherds. More different types were represented. Plain gray ware was still made. Pottery with black designs on a white background was very common, except in the Alkali Ridge[7] area of southeastern Utah where early Developmental-Pueblo painted pottery had a pinkish-orange ground color with designs in red paint. In referring to painted pottery it is customary to mention first the color of the design and then the color of the background, as, for example, black-on-white or red-on-orange ware. Minor types of Developmental-Pueblo times included a lustrous black-on-red ware and bowls with more or less polished black interiors and brownish or reddish exteriors. The differentiation between culinary and non-culinary pottery became more marked. The former came to be characterized by corrugations in the clay, and the latter chiefly by painted designs.

Fig. 22—[Corrugated Pottery]. (Courtesy National Park Service.)

Specialization in particular areas is best shown in the black-on-white wares. There are two main groups—an eastern one which centered around the Chaco Canyon area of New Mexico, and a western one which centered around the Kayenta region of Arizona.[110] Both extended far beyond these nuclear areas. The former was characterized by a wide use of mineral paint. Designs stand out from the background. Possibly they were applied after the vessel had been polished. In the western form, designs were usually applied with a paint made from plant juices and they seem to fade into the surface of the vessel. This may be due in part to the application of paint before the polishing of the vessel had been completed.

In all sections there was a greater variety of forms and designs than in the preceding period. Designs were no longer confined to the interiors of bowls and ladles but were placed on all kinds of vessels. Basketry patterns were still used, but others were taken from textiles, and still others seem to have been developed only for the medium of pottery. Designs show a certain lack of skill in execution, but they were elaborate and boldly conceived. There is every evidence of people still experimenting with a new medium. The principal elements were parallel lines, sometimes straight and in other cases stepped or wavy; zig-zags, triangles, checkerboards, and interlocking frets. Both curvilinear and rectilinear designs were used. In the latter part of the period parallel lines were scarce, and elements became broader and heavier.